Katie Volynets vs Sofia Costoulas — Us Open Qualifying Round 1

Us Open · CHALLENGER · Qualifying Round 1
Katie Volynets
USA
Katie Volynets
#89WTA
1786ELO
1736Hard ELO
24 yrs · 170 cm · Right-handed
Last 10 · pre-match
LLWWLWWWWL
2 — 0
Sets
Monday, 25 August 2025 ·
hard
BEL
Sofia Costoulas
#158WTA
1565ELO
1569Hard ELO
21 yrs
Last 10 · pre-match
LWWLLWLWWL
Volynets K.
6-3 6-4
Costoulas S.
Volynets K.
662
Costoulas S.
340

Katie Volynets defeated Sofia Costoulas 6-3 6-4 in the Us Open qualifying round 1 on hard. The result followed the form book — Katie Volynets came in ranked #89, leading the head-to-head 1–0. Katie Volynets extended the head-to-head to 2–0.

Key context

Head to head

1–0
DateTournamentRoundSurfaceWinnerScore
2025-08-18US OpenQ128hardKatie Volynets6-3 6-4

Statistics

This season
Volynets K.Costoulas S.
1st serve in·Clear edge
78%
61%
1st serve points won·Slight edge
58%
68%
2nd serve points won·Even
46%
47%
Service points won·Even
56%
60%
Return points won·Even
48%
45%
Break points saved·Even
56%
57%
Aces / match·Clear edge
1.2
3.0
Double faults / match·Clear edge
1.1
2.0

Averages over each player's completed matches in the selected window (117 vs 168). ATP, WTA & Challenger.

Clutch

Under pressure
Volynets K.Costoulas S.
Clutch Rating·Dominant
14
83
Break points saved·Dominant
10
83
Break points won·Clear edge
94
82
Deciding sets·Dominant
7
96
Tiebreaks·
17
—

Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About

Freshness

Recent load
Volynets K.Costoulas S.
Freshness·Slight edge
92
100

Volynets K.: 7 days rest · 1 match, 28 games (7d) · Costoulas S.: 16 days rest. Higher means fresher. About

Conditions

Court speed
Fastbig serves, short points
SlowFast

Draw